Just bought a used F150. When it rains, there is some water that accumulates on my carpet - in the rear passenger corner under the seat by the jack. It is the back most corner next to the rear door. Where might the leak be coming from, might I need to replace rubber stripping or something?

 

yep could be the door seal or the rear window, have some one sit on that side while your driving , no radio and see if they can hear any air comming in or out, or if ya dont care get the hose out and start spraying and trouble shoot it.

 

I would put money on the window. Very commom problem.

 

Rear window and 3rd brake light are HUGE causes with this when it arises...check those out.

 

97-98 Model Years were prone to leaky rear windows. If you take it to a windshield shop they can spray it down and find the leak. If you want to do it yourself the best way is to remove the rear seat back so you can see where the water is dripping down.


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